<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" href="../css/flex.css">
    <link rel="stylesheet" href="../css/as.css"/>
</head>
<body>
<!--1-->
<div class="a" flex="main:center cross:center ">
    <div class="b"></div>
</div>

<!--2-->
<div class="a" flex="main:justify dir:top">
    <div class="c">
        <div class="b"></div>
    </div>
    <div class="c" flex="main:right cross:bottom">
        <div class="b"></div>
    </div>
</div>

<div class="a" flex="main:justify dir:top">
    <div class="c">
        <div class="b"></div>
    </div>
    <div class="c" flex="main:center">
        <div class="b"></div>
    </div>
    <div class="c" flex="main:right cross:bottom">
        <div class="b"></div>
    </div>
</div>
<!--四-->
<div class="a" flex="main:justify dir:top">
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
    </div>
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
    </div>
</div>
<!--五-->
<div class="a" flex="main:justify dir:top">
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
    </div>
    <div class="c" flex="main:center">
        <div class="b"></div>
    </div>
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
    </div>
</div>
<!--六-->
<div class="a" flex="main:justify dir:top">
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
        <div class="b"></div>
    </div>
    <div class="c" flex="main:justify">
        <div class="b"></div>
        <div class="b"></div>
        <div class="b"></div>
    </div>
</div>





</body>
</html>